get rid of most clazy warnings (https://github.com/KDE/clazy)
* range loop use refs
* qcolor ctor with ints
* missing Q_OBJECT macro
* use .constfirst instead of .first
enabled ccache for unix systems for fasterr recompiling
* if ccache is in path we use it now
* added SubWindow flag to QtWindow to either use window decorations or show window within main window
* fixes black borders in some Linux window managers
bug id = 376
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* TaskBuildIndex starts seperate indexer processes and communicates via shared memory
* indexer processes get restarted if they fail
* indexer processes are killed when the app closes or crashes
* added utility class SharedMemory to allocate and access shared memory, providing basic data structures
* added SharedMemoryGarbageCollector for keeping track of running instances and cleaning up shared memory in case of a crash
* show errors for source files that crashed during indexing
* added basic exception handling to task scheduling
* added option to turn off processes and use threads in preferences, but still use shared memory
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* avoid AST traversial for CXX translation units with fatal errors
* save all files within those translation units as incomplete
* show number of complete files in finished indexing dialog and overview stats
* display incomplete files hatched in graph view
* display incomplete file titles hatched in code view
* mention file incompleteness in tooltips
* removed derived Indexer classes and set ParserType via template parameter instead
* moved getSourceFileFromCDB from IndexerCxxCdb to IndexerCommandCxxCdb
bug id = 358
* Elide status bar messages to avoid window resize window
* Fixed status view clearing when switching projects
* Refactored app setting loading
* Replace newline characters with spaces in status view
* Checkbox allows for switching between refresh and full refresh
* Renamed menu option Force Refresh to Full Refresh
* Checkbox is not visible when project needs to be fully refreshed
* Moved error filtering to PersistentStorage
* Fixed wrong error count in statusbar and dialog sometimes
* Make sure error tab is visible when showing Log View
* Don't show error view when no visible errors are added
* polished color schemes for error view
* fixed error id column not hidden
* fixed error count shown correctly in each view
* moved storage stats logging to application
* fixed indexed flag of errors broken for indexed headers in cdb project
* fixed scrolling to active error when errors where not visible before
* reverted tictactoe files to no errors
* smaller indexing progress dialog with bar in the middle instead of golden ratio
* set default code snippet expand range to 3
* no minimum height for project file location element in project setup wizard
* move aggregation and inheritance edges to front when hovered or active
* push parent nodes of active nodes to back to make edges to the active child visible
* properly quit application when window is closed while confirm box is open
* properly quit application when window is closed while indexing
* only count top level nodes for count on bundle nodes
* give noLetterScore to index 0 in search index scoring
bug id = 121
* Added DialogView with QtDialogView implementation to handle information dialogs
* Implemented QtIndexingDialog class that covers all different dialogs for indexing
* Directly communicate with DialogView from Prpject and all Tasks involved in indexing
* Block QtMainWindow UI while indexing